Intel OPEN (660) 120/140/150 II - Manual (Page 154)

User Manual version 2.1
OPEN (660) 120/140/150
9-144
E: System I/O Ports
Address range (Hex) Device
000-01F
DMA controller
020-021 Interrupt controller 1, master
022-023 Chipset address
040-05F 8254 timer
060-06F 8024 keyboard controller
070-07F Real time clock, non-maskable
interrupt mask (NMI)
080-09F DMA page register
0A0-0BF Interrupt controller 2
0C0-0DF DMA controller
0F0 Clear math co-processor
0F1 Reset math co-processor
0F8-0FF Math co-processor
1F0-1F8 Fixed disk
200 Game I/O (not used)
443 Watchdog timer
143 Watchdog timer
206 DIO port
2E8 Serial port #4
2F8-2FF Serial port #2
300-31F Prototype card (not used)
360-36F Reserved
378-37F Parallel printer port 1 (LPT1)
380-38F SDLC, bisynchronous 2 (not used)
3A0-3AF Bisynchronous 1 (not used)
3B0-3BF Monochrome display and printer
adapter (LPT1) (not used)
3C0-3CF Reserved
3D0-3DF Color/graphics monitor adapter
3E8 Serial port #3
3F0-3F7 Diskette controller
3F8-3FF Serial port #1
* MPU-401 select from 300~330H (2 bytes)